
The posted coordinates take you to a unique grotto style monument in Calvary Cemetery created by a member of the deceased family.
To find the final coordinates, gather the following information from the monument.
N 43 22.ABC W 92 08.DEF
A = The number of letters in the last name
B = The number of stalagmites rising from the floor inside (look in the hole on either side at the top of the monument)
C = The number of words on the back of the monument
D = The number of vertical columns surrounding the monument
E = The last digit of HER death year
F = The third digit of HIS death year

You can validate your puzzle solution with certitude.
The SQ in the cache name above signifies Spirit Quest, a project started in Indiana ( GCHRFJ ) to distinguish caches that are set in cemeteries. The idea has since spread throughout the Midwest and elsewhere. Iowa cache owners are joining in as of 2009, with the designation IaSQ prefixing their cache names. As elsewhere, this is a voluntary effort to help designate and highlight these special areas.
Please be respectful of the area, and observe their rules and posted hours which are typically sunrise to sunset.